Home / 65,840,947.20-98,825,164.56-31,786,188.48

Finding the Fourth Proportional to 65,840,947.20, 98,825,164.56 and 31,786,188.48

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Solution

The fourth proportional to 65,840,947.20, 98,825,164.56 and 31,786,188.48 is: 47,710,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,840,947.20 : 98,825,164.56 = 31,786,188.48 : x
  2. Step 2: Convert to fraction form
    65,840,947.20/98,825,164.56 = 31,786,188.48/x
  3. Step 3: Cross multiply
    65,840,947.20x = 98,825,164.56 × 31,786,188.48
  4. Step 4: Simplify right side
    65,840,947.20x = 3,141,275,307,271,176.50
  5. Step 5: Solve for x
    x = 3,141,275,307,271,176.50/65,840,947.20
  6. Step 6: Final answer
    x = 47,710,056.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.